Trying to fix work-mate’s computer

1. I found the problem, but I just need time to fix it.
2. I’m a little rusty.
3. I’m working on it.
4. I've hit a brick wall.
5. I tried my best, but I guess that just wasn’t good enough.
6. It doesn’t look like I’m making much headway.
7. Oh well, it was worth a try.
8. It may look simple, but it's really complicated.
9. You can’t blame a fellow for trying.
10. I’m sorry that it just didn’t work out.
11. Back to the drawing board.
12. I got more than I bargained for.
13. That’s easier said than done.
14. It was a shot in the dark.
15. That’s what I could do.
16. I’m sure you were expecting more from me.
17. I’m trying my best.
18. That’s the only thing I can think of.

Trying to fix work-mate’s computer